:root {
    --auto-center-width: 1160px;
    --header-z-index: 999;
    --a-color: blue;
    --a-color-active: white;
    --header-white-hover: #ff7200;
}

body {
    font: 12px/1.5 "Microsoft YaHei","Heiti SC",tahoma,arial,"Hiragino Sans GB","\5B8B\4F53",sans-serif;
}

a {
    color: white;
    text-decoration: none;
}

a:active {
    color: blue;
}

/* 版心 */
.auto-center {
    width: var(--auto-center-width);
    margin-left: auto;
    margin-right: auto;
}

/* 默认是横跨一行，宽度为100%，但是不小于版心宽度 */
.full-center {
    min-width: var(--auto-center-width);
}